KR20210033306A - Clutch system for hybrid electric vehicles - Google Patents

Clutch system for hybrid electric vehicles Download PDF

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Publication number
KR20210033306A
KR20210033306A KR1020190114874A KR20190114874A KR20210033306A KR 20210033306 A KR20210033306 A KR 20210033306A KR 1020190114874 A KR1020190114874 A KR 1020190114874A KR 20190114874 A KR20190114874 A KR 20190114874A KR 20210033306 A KR20210033306 A KR 20210033306A
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KR
South Korea
Prior art keywords
clutch
hybrid electric
hub
electric vehicle
connection member
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KR1020190114874A
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Korean (ko)
Inventor
안철민
변성곤
김석준
맹수현
천동희
김백유
하준영
Original Assignee
현대자동차주식회사
기아자동차주식회사
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Priority to KR1020190114874A priority Critical patent/KR20210033306A/en
Priority to US16/694,342 priority patent/US20210078400A1/en
Publication of KR20210033306A publication Critical patent/KR20210033306A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/06—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638—Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/22—Friction clutches with axially-movable clutching members
    • F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
    • F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/644—Hub construction
    • F16D13/646—Mounting of the discs on the hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

Disclosed is a clutch device for a hybrid electric vehicle. According to an embodiment of the present invention, a clutch device for a hybrid electric vehicle supports the reaction force of a clutch piston by a return spring without a separate transmission-side axial support bearing by spline coupling an inner diameter part of a clutch connecting member that directly transmits the rotational power of a motor to an input shaft to an engine side tip of the input shaft through a step surface, and can remove the existing transmission-side axial support bearing so as to support the reaction force of the clutch piston by the return spring without a separate transmission-side axial support bearing, thereby reducing the overall axial length of the transmission and reducing material costs.

Description

하이브리드 전기자동차용 클러치 장치{CLUTCH SYSTEM FOR HYBRID ELECTRIC VEHICLES} Clutch system for hybrid electric vehicle {CLUTCH SYSTEM FOR HYBRID ELECTRIC VEHICLES}

본 발명은 하이브리드 전기 자동차용 클러치 장치에 관한 것으로, 보다 상세하게는 모터의 회전동력을 직접 입력축에 전달하는 클러치 연결부재의 내경부를 입력축의 선단부에 단차면을 통하여 스플라인 결합하여 변속기의 축방향 전장을 축소하는 하이브리드 전기 자동차용 클러치 장치에 관한 것이다.The present invention relates to a clutch device for a hybrid electric vehicle, and more particularly, the inner diameter of a clutch connection member that directly transmits the rotational power of a motor to the input shaft is splined to the front end of the input shaft through a stepped surface, It relates to a clutch device for a hybrid electric vehicle to reduce the size.

차량에 있어서의 친환경 기술은 미래 자동차 산업의 핵심 기술로서, 자동차 메이커들은 환경 및 연비 규제를 달성하기 위한 친환경 자동차 개발에 총력을 기울이고 있다.Eco-friendly technology in vehicles is a key technology in the future automotive industry, and car makers are focusing their efforts on developing eco-friendly vehicles to achieve environmental and fuel economy regulations.

미래 자동차 기술은 전기 에너지를 이용하는 전기 자동차(EV : Electric Vehicle), 하이브리드 전기 자동차(HEV : Hybrid Electric Vehicle), 효율과 편의성을 향상시킨 더블 클러치 변속기(DCT : Double Clutch Transmission)를 예로 들 수 있다.Examples of future vehicle technologies include electric vehicles (EVs), hybrid electric vehicles (HEVs), and double clutch transmissions (DCTs) with improved efficiency and convenience.

상기 하이브리드 전기자동차는 2개 이상의 동력원(Power Source)을 사용하는 자동차로서, 여러 가지 방식으로 조합될 수 있는데, 통상적으로 기존 화석 연료를 사용하는 가솔린엔진 또는 디젤엔진과, 전기 에너지에 의하여 구동되는 모터/제너레이터가 혼합(Hybrid)되어 구성된다.The hybrid electric vehicle is a vehicle that uses two or more power sources, and can be combined in various ways. Typically, a gasoline engine or a diesel engine using an existing fossil fuel, and a motor driven by electric energy /Generator is mixed (Hybrid) and composed.

또한, 상기 더블 클러치 변속기는 클러치 2개를 적용하여 홀수단과 짝수단의 변속 시, 번갈아 작동시키면서 변속이 이루어지도록 하는 변속기로서, 상기와 같이 홀수단과 짝수단의 변속을 번갈아 작동시키는 매커니즘은 기존 수동 변속기(MT) 및 자동화 수동 변속기(AMT)의 변속 시의 토크 단절감을 개선할 수 있다.In addition, the double-clutch transmission is a transmission that alternately operates when shifting the odd means and the even means by applying two clutches so that the shift is made, and the mechanism for alternately operating the shifts of the odd means and the even means as described above is a conventional manual transmission. (MT) and automatic manual transmission (AMT) can improve the torque cut-off during shifting.

최근에는 화두가 되고 있는 하이브리드 전기자동차는 엔진과 모터의 회전동력을 변속기에 효과적으로 전달하여 효율을 높이고, 연비를 극대화시키도록 효과적인 동력전달과 사이즈 및 부품 축소 등을 가능하게 하는 클러치 장치의 개발이 요구되어 왔다. Hybrid electric vehicles, which have become a hot topic in recent years, require the development of a clutch device that enables effective power transmission and reduction of size and parts to increase efficiency by effectively transmitting the rotational power of the engine and motor to the transmission, and to maximize fuel economy. Has been.

이에 따라, 하이브리드 전기자동차(HEV)를 효율적으로 조합하기 위한 클러치 장치의 요구가 있어왔으며, 엔진 클러치의 기능을 포함하여 하이브리드 전기자동차의 모터와 함께 모듈화하기 위한 연구개발이 지속적으로 이루어지고 있다. Accordingly, there has been a demand for a clutch device for efficiently combining a hybrid electric vehicle (HEV), and research and development for modularization with a motor of a hybrid electric vehicle, including the function of an engine clutch, are continuously being made.

본 발명의 실시 예는 모터의 회전동력을 직접 입력축에 전달하는 클러치 연결부재의 내경부를 입력축의 엔진측 선단부에 단차면을 통하여 스플라인 결합하여 별도의 변속기측 축방향 지지 베어링 없이 리턴 스프링에 의한 클러치 피스톤의 반작용력을 지지하도록 하는 하이브리드 전기 자동차용 클러치 장치를 제공하고자 한다.In an embodiment of the present invention, the inner diameter of the clutch connection member that directly transmits the rotational power of the motor to the input shaft is splined to the front end of the engine side of the input shaft through a stepped surface, so that the clutch using a return spring without a separate transmission-side axial support bearing. An object is to provide a clutch device for a hybrid electric vehicle that supports the reaction force of a piston.

본 발명의 실시 예는 모터의 회전동력을 입력축에 전달하는 클러치 연결부재를 이용하여 클러치 피스톤과의 유압 작동실을 형성하여 부품수 최소화로 설치공간 및 전장을 축소하는 하이브리드 전기자동차용 클러치 장치를 제공하고자 한다.An embodiment of the present invention provides a clutch device for a hybrid electric vehicle that reduces the installation space and overall length by minimizing the number of parts by forming a hydraulic operating chamber with the clutch piston using a clutch connection member that transmits the rotational power of the motor to the input shaft. I want to.

또한, 본 발명의 실시 예는 모터의 로터 허브를 엔진측 프론트 케이스에 베어링을 통하여 회전 지지한 상태로 클러치 드럼의 기능을 하도록 구성하여 공간 활용성을 높이는 하이브리드 전기자동차용 클러치 장치를 제공하고자 한다. In addition, an embodiment of the present invention is to provide a clutch device for a hybrid electric vehicle that improves space utilization by configuring the rotor hub of a motor to function as a clutch drum while rotating through a bearing on an engine-side front case.

본 발명의 하나 또는 다수의 실시 예에서는 모터와 엔진으로부터 전달되는 회전동력을 변속기의 입력축에 선택적으로 연결하는 하이브리드 전기자동차용 클러치 장치에 있어서, 상기 모터의 로터에 고정 연결되는 로터 허브; 상기 로터 허브의 반경방향 내측 선단에 고정 연결된 상태로, 내단부에 축방향 외측으로 돌출된 결합단을 형성하고, 상기 결합단의 내경부를 통해 댐퍼 출력축 상에 회전 가능하게 설치되고, 상기 결합단의 외경부를 통해 프론트 케이스에 축방향 내측으로 형성된 지지단에 베어링을 통하여 회전 지지되는 허브 연결부재; 상기 로터 허브의 일측 내경부에 스플라인 결합되는 복수의 클러치 플레이트; 상기 로터 허브의 일측 내경부에 대응하여 반경방향 내측에 배치되며, 반경방향 내측 선단이 상기 댐퍼 출력축의 선단에 고정 연결되는 클러치 허브; 상기 클러치 플레이트 사이사이에 배치되어 상기 클러치 허브의 외경부에 스플라인 결합되는 클러치 디스크; 상기 로터 허브의 내경부 일측에 외주단이 스플라인 결합되고, 내주단의 내경부가 상기 입력축의 외측 선단부에 형성되는 단차면을 통해 축방향 내측으로 지지되어 스플라인 결합되는 클러치 연결부재; 및 상기 클러치 허브와 상기 클러치 연결부재 사이에 배치되어 상기 클러치 연결부재와의 사이에 유압 작동실을 형성하여 상기 클러치 플레이트와 클러치 디스크를 작동 제어하는 클러치 피스톤 유닛를 포함하는 하이브리드 전기자동차용 클러치 장치가 제공될 수 있다.In one or more embodiments of the present invention, there is provided a clutch device for a hybrid electric vehicle selectively connecting rotational power transmitted from a motor and an engine to an input shaft of a transmission, comprising: a rotor hub fixedly connected to the rotor of the motor; In a state fixedly connected to the radially inner tip of the rotor hub, a coupling end protruding outward in the axial direction is formed at the inner end, and is rotatably installed on the damper output shaft through the inner diameter of the coupling end, and the coupling end A hub connecting member rotated through a bearing at a support end formed in the axial direction in the front case through the outer diameter of the hub; A plurality of clutch plates spline-coupled to an inner diameter of one side of the rotor hub; A clutch hub disposed radially inwardly corresponding to an inner diameter of one side of the rotor hub, and having a radially inner tip fixedly connected to the tip of the damper output shaft; A clutch disk disposed between the clutch plates and spline-coupled to the outer diameter portion of the clutch hub; A clutch connection member having an outer circumferential end spline-coupled to one side of the inner diameter portion of the rotor hub, and supporting the inner diameter portion of the inner circumferential end in an axial direction through a step surface formed at an outer tip portion of the input shaft to be spline-coupled; And a clutch piston unit disposed between the clutch hub and the clutch connection member to form a hydraulic operating chamber between the clutch connection member to operate and control the clutch plate and the clutch disk. Can be.

또한, 상기 클러치 피스톤 유닛은 상기 클러치 연결부재의 일측에 형성된 실링단과 내주단 사이에 각각 시일링을 통하여 밀폐된 상태로 유압 작동실을 형성하여 축방향으로 안내되며, 외단부가 상기 클러치 플레이트에 대응하여 작동하는 클러치 피스톤; 상기 클러치 연결부재의 내주단 일측에 반경방향 내측 선단이 지지된 상태로, 상기 클러치 피스톤의 일측에 형성된 연장단에 반경방향 외측 선단이 슬립 가능하게 설치되는 스프링 리테이너; 및 상기 클러치 피스톤과 스프링 리테이너 사이에 설치되어 상기 클러치 피스톤에 복원력을 제공하는 리턴 스프링을 포함할 수 있다.In addition, the clutch piston unit is guided in the axial direction by forming a hydraulic operating chamber in a sealed state between a sealing end formed on one side of the clutch connection member and an inner circumferential end, respectively, and the outer end corresponding to the clutch plate. A clutch piston that operates by; A spring retainer in which a radially inner tip is supported on one side of an inner circumferential end of the clutch connection member, and a radially outer tip is provided to be slipped on an extended end formed on one side of the clutch piston; And a return spring installed between the clutch piston and the spring retainer to provide a restoring force to the clutch piston.

여기서, 상기 스프링 리테이너는 내측 선단이 상기 클러치 연결부재의 내주단 일측에 스냅링에 의해 축방향 외측으로 지지되도록 설치될 수 있다.Here, the spring retainer may be installed so that the inner tip is supported axially outward by a snap ring on one side of the inner circumferential end of the clutch connection member.

또한, 상기 클러치 연결부재는 일측으로 연장 형성된 내주단의 일측에 단차면을 형성하고, 상기 단차면과 상기 댐퍼 출력축의 선단부 내측과의 사이에 베어링을 개재하여 회전 지지될 수 있다.In addition, the clutch connection member may have a stepped surface formed on one side of an inner circumferential end extending to one side, and may be rotated supported by a bearing between the stepped surface and an inner side of the tip end of the damper output shaft.

또한, 상기 클러치 연결부재는 상기 내주단의 내경부 일측에 상기 입력축의 엔진측 선단부에 형성되는 단차면에 지지되는 지지턱이 형성될 수 있다.In addition, the clutch connection member may have a support jaw supported on a stepped surface formed at an engine-side front end of the input shaft on one side of the inner diameter portion of the inner circumferential end.

상기 허브 연결부재는 일측면과 상기 댐퍼 출력축의 선단부 외측과의 사이에 베어링을 개재하여 회전 지지될 수 있다.The hub connecting member may be rotationally supported through a bearing between one side surface and an outer side of the front end of the damper output shaft.

본 발명의 실시 예는 모터의 회전동력을 직접 입력축에 전달하는 클러치 연결부재의 내경부를 입력축의 엔진측 선단부에 단차면을 통하여 스플라인 결합하여 리턴 스프링에 의한 클러치 피스톤의 반작용력을 지지할 수 있도록 하여 기존의 변속기측 축방향 지지 베어링을 삭제할 수 있으며, 이로 인해 변속기의 축방향 전장을 축소하고 재료비도 줄일 수 있는 효과가 있다. In an embodiment of the present invention, the inner diameter of the clutch connection member that directly transmits the rotational power of the motor to the input shaft is splined to the front end of the engine side of the input shaft through a stepped surface to support the reaction force of the clutch piston by the return spring. As a result, the existing transmission-side axial support bearing can be deleted, thereby reducing the overall axial length of the transmission and reducing material cost.

또한, 본 발명의 실시 예는 모터의 회전동력을 입력축에 전달하는 클러치 연결부재를 이용하여 클러치 피스톤과의 유압 작동실을 형성함으로써, 유압 작동실을 구성하기 위한 별도의 부품을 배제할 수 있고, 이로 인한 설치 공간을 최소화할 수 있는 효과가 있다. In addition, according to an embodiment of the present invention, by forming a hydraulic operating chamber with the clutch piston using a clutch connecting member that transmits the rotational power of the motor to the input shaft, separate parts for constituting the hydraulic operating chamber can be excluded, This has the effect of minimizing the installation space.

또한, 본 발명의 실시 예는 모터의 로터 허브를 엔진측 프론트 케이스에 베어링을 통하여 회전 지지한 상태로 클러치 드럼의 기능을 하도록 구성함으로써, 모터 내주 측의 여유 공간에 대한 공간 활용성을 높이고, 클러치 드럼을 별도로 구비하지 않아도 되는 효과가 있다. In addition, an embodiment of the present invention is configured to function as a clutch drum in a state in which the rotor hub of the motor is rotated through a bearing on the engine-side front case, thereby increasing space utilization for the free space on the inner circumference of the motor, and There is an effect of not having to provide a separate drum.

도 1은 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치의 단면도이다.
도 2는 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치의 주요부의 확대 단면도이다.
도 3은 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치의 동력 전달 작동도이다. 1 is a cross-sectional view of a clutch device for a hybrid electric vehicle according to an embodiment of the present invention.
2 is an enlarged cross-sectional view of a main part of a clutch device for a hybrid electric vehicle according to an embodiment of the present invention.
3 is a power transmission operation diagram of a clutch device for a hybrid electric vehicle according to an embodiment of the present invention.

이하, 본 발명의 바람직한 실시 예를 첨부한 도면에 의거하여 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

단, 본 발명의 실시 예를 명확하게 설명하기 위하여 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 도면부호를 적용하여 설명한다.However, in order to clearly describe the embodiments of the present invention, parts irrelevant to the description have been omitted, and the same or similar components will be described by applying the same reference numerals throughout the specification.

도 1은 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치의 단면도이고, 도 2는 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치의 주요부의 확대 단면도이다. 1 is a cross-sectional view of a clutch device for a hybrid electric vehicle according to an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of a clutch device for a hybrid electric vehicle according to an embodiment of the present invention.

도 1과 도 2를 참조하면, 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치(CL, 이하, 클러치 장치라 함)는 기본적으로 모터(M: 즉, 모터/제너레이터)와 엔진(미도시)의 엔진 출력축(ES)에 댐퍼(D)를 통해 연결된 댐퍼 출력축(DS)으로부터 전달되는 회전동력을 입력축(IS)에 선택적으로 연결하여 변속기(미도시, 즉, 변속기구)에 회전동력을 선택적으로 전달한다. 1 and 2, a clutch device for a hybrid electric vehicle (CL, hereinafter, referred to as a clutch device) according to an embodiment of the present invention is basically a motor (M: that is, a motor/generator) and an engine (not shown). ), the rotational power transmitted from the damper output shaft DS connected through the damper D to the engine output shaft ES of) is selectively connected to the input shaft IS, and the rotational power is selectively connected to the transmission (not shown, that is, the transmission mechanism). To deliver.

여기서, 상기 모터(M)는 일반 전기자동차에 적용되는 것과 같이 로터(R)와 스테이터(S)로 이루어져 모터 및 제너레이터 기능을 동시에 수행할 수 있다. Here, the motor M is composed of a rotor R and a stator S, as applied to a general electric vehicle, and can simultaneously perform a motor and a generator function.

즉, 상기 로터(R)는 로터 허브(11)와 허브 연결부재(13)를 통하여 프론트 케이스(FC)의 반경방향 내측에 형성되는 지지단(5)에 회전 지지되고, 상기 스테이터(S)는 프론트 케이스(FC)에 서포트 링(3)을 통하여 고정된다.That is, the rotor (R) is rotationally supported by a support end (5) formed on the radially inner side of the front case (FC) through the rotor hub 11 and the hub connecting member 13, and the stator (S) is It is fixed to the front case FC through the support ring 3.

이러한 하이브리드 전기자동차의 동력계에서, 본 발명의 실시 예에 따른 클러치 장치(CL)는 상기 로터 허브(11), 허브 연결부재(13), 복수의 클러치 플레이트(21), 클러치 허브(15), 복수의 클러치 디스크(23), 클러치 연결부재(17), 및 클러치 피스톤 유닛(30)을 포함한다. In the dynamometer of such a hybrid electric vehicle, the clutch device CL according to the embodiment of the present invention includes the rotor hub 11, the hub connecting member 13, a plurality of clutch plates 21, a clutch hub 15, and a plurality of Including the clutch disk 23, the clutch connection member 17, and the clutch piston unit 30.

즉, 본 발명의 실시 예에 따른 클러치 장치(CL)는 상기 모터(M)의 회전동력은 입력축(IS)에 상시 전달하면서 엔진(미도시)의 회전동력은 상기 입력축(IS)에 선택적으로 전달하는 기능을 갖는다.That is, in the clutch device CL according to an embodiment of the present invention, the rotational power of the motor M is always transmitted to the input shaft IS, while the rotational power of the engine (not shown) is selectively transmitted to the input shaft IS. It has the function to do.

이하, 본 발명의 실시 예에 따른 클러치 장치의 각 구성을 보다 구체적으로 설명한다.Hereinafter, each configuration of a clutch device according to an embodiment of the present invention will be described in more detail.

먼저, 상기 로터 허브(11)는 모터(M)의 로터(R)에 고정된 상태로 연결된다.First, the rotor hub 11 is connected to the rotor R of the motor M in a fixed state.

상기 허브 연결부재(13)는 상기 로터 허브(11)의 반경방향 내측 선단에 고정 연결되며, 내단부에 축방향 외측으로 돌출된 결합단(13a)이 형성된다. The hub connecting member 13 is fixedly connected to an inner end of the rotor hub 11 in the radial direction, and a coupling end 13a protruding outward in the axial direction is formed at the inner end thereof.

상기 허브 연결부재(13)는 결합단(13a)의 내경부에 베어링(B)을 개재하여 댐퍼 출력축(DS) 상에 회전 가능하게 설치되고, 상기 결합단(13a)의 외경부는 프론트 케이스(FC)에 축방향 내측으로 형성된 지지단(5)과의 사이에 베어링(B)을 개재하여 회전 지지된다. The hub connecting member 13 is rotatably installed on the damper output shaft DS with the bearing (B) interposed on the inner diameter of the coupling end 13a, and the outer diameter of the coupling end 13a is a front case (FC It is rotationally supported through a bearing (B) between the support end (5) formed in the axial direction inward in ).

이때, 상기 허브 연결부재(13)의 외주단이 상기 로터 허브(11)의 반경방향 내측 선단에 용접되어 상호 고정 연결되고, 일측면이 상기 댐퍼 출력축(DS)의 선단부 외측과의 사이에 베어링(B)을 개재하여 회전 지지된다.At this time, the outer circumferential end of the hub connecting member 13 is welded to the radially inner tip of the rotor hub 11 to be fixedly connected to each other, and one side thereof is a bearing ( It is supported by rotation through B).

그리고 상기 복수의 클러치 플레이트(21)는 상기 로터 허브(11)의 일측 내경부에 스플라인 결합된다. Further, the plurality of clutch plates 21 are spline-coupled to an inner diameter portion of one side of the rotor hub 11.

상기 클러치 허브(15)는 상기 로터 허브(11)의 일측 내경부에 대응하여 반경방향 내측에 배치되는데, 반경방향 내측 선단이 상기 댐퍼 출력축(DS)의 선단에 용접되어 고정 연결된다. The clutch hub 15 is disposed radially inward corresponding to the inner diameter of one side of the rotor hub 11, and the inner radial end is welded to the front end of the damper output shaft DS to be fixedly connected.

또한, 상기 복수의 클러치 디스크(23)는 상기 클러치 플레이트(21) 사이사이에 배치되어 상기 클러치 허브(15)의 외경부에 스플라인 결합된다. In addition, the plurality of clutch disks 23 are disposed between the clutch plates 21 and are spline-coupled to the outer diameter portion of the clutch hub 15.

그리고 상기 클러치 연결부재(17)는 2개의 부재가 용접 고정되어 하나로 형성되며, 상기 로터 허브(11)의 내경부 일측에 외주단(17b)이 스플라인 결합된다. In addition, the clutch connection member 17 is formed as one by welding and fixing two members, and an outer circumferential end 17b is spline-coupled to one side of the inner diameter portion of the rotor hub 11.

이때, 상기 클러치 연결부재(17)는 내주단(17a)의 내경부가 상기 입력축(IS)의 외측 선단부에 형성되는 단차면(F1)을 통해 축방향 내측으로 지지된 상태로 스플라인 결합된다.At this time, the clutch connection member 17 is spline-coupled in a state in which the inner diameter of the inner peripheral end 17a is supported in the axial direction through the stepped surface F1 formed on the outer front end of the input shaft IS.

또한, 상기 클러치 연결부재(17)는 일측으로 연장 형성된 내주단(17a)의 외측에 단차면(F2)을 형성하고, 상기 단차면(F2)과 상기 댐퍼 출력축(DS)의 선단부 내측과의 사이에 베어링(B)을 개재하여 회전 지지된다. In addition, the clutch connection member 17 forms a stepped surface F2 on the outer side of the inner circumferential end 17a extending to one side, and between the stepped surface F2 and the inside of the front end of the damper output shaft DS. It is supported by rotation through the bearing (B).

또한, 상기 클러치 연결부재(17)는 상기 내주단(17a)의 내경부 일측에 지지턱(17c)이 형성되어 상기 입력축(IS)의 엔진측 선단부에 형성되는 상기 단차면(F1)에 지지되도록 구성된다. In addition, the clutch connection member 17 has a support jaw 17c formed on one side of the inner diameter portion of the inner circumferential end 17a so that it is supported on the stepped surface F1 formed on the front end of the engine side of the input shaft IS. It is composed.

그리고 상기 클러치 피스톤 유닛(30)은 상기 클러치 허브(15)와 상기 클러치 연결부재(17) 사이에 배치되어 상기 클러치 연결부재(17)와의 사이에 유압 작동실(LC)을 형성하여 상기 클러치 플레이트(21)와 클러치 디스크(23)를 작동 제어하도록 구성된다.And the clutch piston unit 30 is disposed between the clutch hub 15 and the clutch connection member 17 to form a hydraulic operating chamber LC between the clutch connection member 17 and the clutch plate ( 21) and the clutch disk 23 are configured to operate and control.

즉, 상기 클러치 피스톤 유닛(30)은 클러치 피스톤(31), 스프링 리테이너(33) 및 리턴 스프링(35)으로 구성된다. That is, the clutch piston unit 30 is composed of a clutch piston 31, a spring retainer 33, and a return spring 35.

상기 클러치 피스톤(31)은 상기 클러치 연결부재(17)의 일측에 형성된 실링단(17d)과 내주단(17a) 사이에 각각 시일링(37)을 통하여 밀폐된 상태로 유압 작동실(LC)을 형성하여 축방향으로 안내되도록 구성된다. 이때, 상기 클러치 피스톤(31)의 외단부(31c)는 상기 클러치 플레이트(21)에 내측에 대응하여 작동하도록 구성된다.The clutch piston 31 is sealed between the sealing end 17d and the inner circumferential end 17a formed on one side of the clutch connection member 17 through a sealing ring 37, respectively, and the hydraulic operating chamber LC is sealed. Formed to be guided in the axial direction. At this time, the outer end 31c of the clutch piston 31 is configured to operate in correspondence to the inner side of the clutch plate 21.

상기 스프링 리테이너(33)는 반경방향 내측 선단이 상기 클러치 연결부재(17)의 내주단(17a) 일측에 지지된 상태로, 반경방향 외측 선단이 상기 클러치 피스톤(31)의 일측에 형성된 연장단(31a)에 슬립 가능하게 설치된다. The spring retainer 33 has a radially inner tip supported on one side of the inner circumferential end 17a of the clutch connection member 17, and an extended radially outer tip formed on one side of the clutch piston 31 ( It is installed to be able to slip on 31a).

이때, 상기 스프링 리테이너(33)는 내측 선단이 상기 클러치 연결부재(17)의 내주단(17a) 일측에 스냅링(39)에 의해 축방향 외측으로 지지되도록 설치된다. At this time, the spring retainer 33 is installed so that the inner tip is supported axially outward by a snap ring 39 on one side of the inner circumferential end 17a of the clutch connection member 17.

또한, 상기 리턴 스프링(35)은 상기 클러치 피스톤(31)과 스프링 리테이너(33) 사이에 설치되어 상기 클러치 피스톤(31)에 복원력을 제공하도록 구성된다. In addition, the return spring 35 is installed between the clutch piston 31 and the spring retainer 33 to provide a restoring force to the clutch piston 31.

도 3은 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치의 동력 전달 작동도이다. 3 is a power transmission operation diagram of a clutch device for a hybrid electric vehicle according to an embodiment of the present invention.

이하, 상기한 바와 같은 구성을 갖는 클러치 장치의 작동을 설명한다. Hereinafter, the operation of the clutch device having the configuration as described above will be described.

도 3을 참조하면, 엔진(미도시)의 회전동력은 상기 클러치 장치(CL)가 작동하면, 댐퍼(D)를 거처 댐퍼 출력(DS), 클러치 허브(15), 마찰부재(21,23)(즉, 클러치 플레이트와 클러치 디스크), 로터 허브(11), 클러치 연결부재(17), 입력축(IS) 순의 동력전달경로를 통하여 선택적으로 동력 전달된다.3, when the clutch device CL operates, the rotational power of the engine (not shown) is through the damper D, the damper output DS, the clutch hub 15, and the friction members 21 and 23 (That is, the clutch plate and the clutch disk), the rotor hub 11, the clutch connection member 17, the power is selectively transmitted through the power transmission path in the order of the input shaft (IS).

이때, HEV 모드에서는 모터(M)가 구동하여 모터(M)의 회전동력이 보조동력으로 전달될 수 있다. In this case, in the HEV mode, the motor M is driven so that the rotational power of the motor M may be transmitted as auxiliary power.

또한, 엔진은 정지하고, 모터(M)의 구동력만으로 동력이 전달되는 EV 모드에서는 상기 클러치 장치(CL)의 작동을 해제한 상태로, 모터(M)의 회전동력이 클러치 장치(CL)의 작동과 상관없이 로터(R)로부터 로터 허브(11), 클러치 연결부재(17), 입력축(IS) 순의 동력전달경로를 통하여 상시 전달된다.In addition, in the EV mode in which the engine is stopped and power is transmitted only by the driving force of the motor M, the operation of the clutch device CL is released, and the rotational power of the motor M is the operation of the clutch device CL. Regardless of this, it is always transmitted from the rotor R through the power transmission path in the order of the rotor hub 11, the clutch connection member 17, and the input shaft IS.

따라서 본 발명의 실시 예에 따른 하이브리드 전기자동차용 클러치 장치는 모터(M)의 회전동력을 직접 입력축(IS)에 전달하는 클러치 연결부재(17)의 내경부를 입력축(IS)의 엔진측 선단부에 단차면(F1)을 통하여 스플라인 결합하는 구조적 특징으로부터 클러치 피스톤 유닛(30)의 리턴 스프링(35)에 의한 클러치 피스톤(31)의 반작용력을 지지할 수 있도록 해주는 효과가 있다. Therefore, in the clutch device for a hybrid electric vehicle according to an embodiment of the present invention, the inner diameter of the clutch connection member 17 that directly transmits the rotational power of the motor M to the input shaft IS is at the front end of the input shaft IS on the engine side. There is an effect of supporting the reaction force of the clutch piston 31 by the return spring 35 of the clutch piston unit 30 from the structural feature of spline coupling through the stepped surface F1.

이로 인해, 기존의 변속기측 축방향 지지 베어링을 삭제할 수 있어 변속기의 축방향 전장을 축소하고 재료비도 줄일 수 있는 이점이 있다. For this reason, it is possible to eliminate the existing transmission-side axial support bearing, thereby reducing the overall axial length of the transmission and reducing material cost.

또한, 본 발명의 실시 예에 따른 클러치 장치(CL)는 모터(M)의 회전동력을 입력축(IS)에 전달하는 클러치 연결부재(17)를 이용하여 클러치 피스톤(31)과의 유압 작동실(LC)을 형성함으로써, 유압 작동실(LC)을 구성하기 위한 별도의 부품을 배제할 수 있고, 이로 인한 설치 공간의 최소화가 가능한 효과가 있다. In addition, the clutch device CL according to an embodiment of the present invention uses a clutch connection member 17 that transmits the rotational power of the motor M to the input shaft IS, and uses a hydraulic operating chamber with the clutch piston 31 ( By forming the LC), it is possible to exclude a separate component for configuring the hydraulic operating chamber (LC), thereby minimizing the installation space is possible there is an effect.

또한, 본 발명의 실시 예에 따른 클러치 장치(CL)는 모터(M)의 로터 허브(11)를 엔진측 프론트 케이스(FC)에 베어링(B)을 통하여 회전 지지한 상태로 클러치 드럼의 기능을 하도록 구성함으로써, 모터(M) 내주 측의 여유 공간에 대한 공간 활용성을 높임과 동시에, 클러치 드럼을 별도로 구비하지 않아도 되는 효과가 있다. In addition, the clutch device CL according to an embodiment of the present invention performs the function of the clutch drum in a state in which the rotor hub 11 of the motor M is rotated through a bearing B to the engine-side front case FC. By configuring so as to improve the space utilization for the free space on the inner circumference of the motor M, there is an effect that it is not necessary to separately provide a clutch drum.

상기에서 본 발명의 바람직한 실시 예를 개시하고 있으나, 본 발명은 상기 실시 예에 한정되지 아니하며, 본 발명의 실시 예로부터 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 발명하여 균등하다고 인정되는 범위의 모든 변경을 포함한다.Although the preferred embodiments of the present invention are disclosed above, the present invention is not limited to the above embodiments, and from the embodiments of the present invention, a person having ordinary knowledge in the technical field to which the present invention belongs is easily invented and recognized as equivalent. Includes all changes to the extent that it is.

FC: 프론트 케이스
M: 모터(모터/제너레이터)
D: 댐퍼
IS: 입력축
ES: 엔진 출력축
DS: 댐퍼 출력축
B: 베어링
3: 서포트 링
5: 지지단
11: 로터 허브
13: 허브 연결부재
13a: 결합단
15: 클러치 허브
17: 클러치 연결부재
17c: 지지턱
21: 복수의 클러치 플레이트
23: 복수의 클러치 디스크
30: 클러치 피스톤 유닛
F1, F2: 단차면
31: 클러치 피스톤
33: 스프링 리테이너
35: 리턴 스프링
37: 시일링
39: 스냅링FC: front case
M: Motor (motor/generator)
D: damper
IS: input shaft
ES: engine output shaft
DS: damper output shaft
B: bearing
3: support ring
5: support
11: rotor hub
13: Hub connecting member
13a: coupling end
15: clutch hub
17: clutch connection member
17c: support jaw
21: multiple clutch plates
23: multiple clutch discs
30: clutch piston unit
F1, F2: step surface
31: clutch piston
33: spring retainer
35: return spring
37: sealing
39: snap ring

Claims (12)

모터와 엔진으로부터 전달되는 회전동력을 변속기의 입력축에 선택적으로 연결하는 하이브리드 전기자동차용 클러치 장치에 있어서,
상기 모터의 로터에 고정 연결되는 로터 허브;
상기 로터 허브의 반경방향 내측 선단에 고정 연결된 상태로, 내단부에 축방향 외측으로 돌출된 결합단을 형성하고, 상기 결합단의 내경부를 통해 댐퍼 출력축 상에 회전 가능하게 설치되고, 상기 결합단의 외경부를 통해 프론트 케이스에 축방향 내측으로 형성된 지지단에 베어링을 통하여 회전 지지되는 허브 연결부재;
상기 로터 허브의 일측 내경부에 스플라인 결합되는 복수의 클러치 플레이트;
상기 로터 허브의 일측 내경부에 대응하여 반경방향 내측에 배치되며, 반경방향 내측 선단이 상기 댐퍼 출력축의 선단에 고정 연결되는 클러치 허브;
상기 클러치 플레이트 사이사이에 배치되어 상기 클러치 허브의 외경부에 스플라인 결합되는 복수의 클러치 디스크;
상기 로터 허브의 내경부 일측에 외주단이 스플라인 결합되고, 내주단의 내경부가 상기 입력축의 외측 선단부에 형성되는 단차면을 통해 축방향 내측으로 지지되어 스플라인 결합되는 클러치 연결부재; 및
상기 클러치 허브와 상기 클러치 연결부재 사이에 배치되어 상기 클러치 연결부재와의 사이에 유압 작동실을 형성하여 상기 클러치 플레이트와 클러치 디스크를 작동 제어하는 클러치 피스톤 유닛;
를 포함하는 하이브리드 전기자동차용 클러치 장치.In the clutch device for a hybrid electric vehicle selectively connecting rotational power transmitted from a motor and an engine to an input shaft of a transmission,
A rotor hub fixedly connected to the rotor of the motor;
In a state fixedly connected to the radially inner tip of the rotor hub, a coupling end protruding outward in the axial direction is formed at the inner end, and is rotatably installed on the damper output shaft through the inner diameter of the coupling end, and the coupling end A hub connecting member rotated through a bearing at a support end formed in the axial direction in the front case through the outer diameter of the hub;
A plurality of clutch plates spline-coupled to an inner diameter of one side of the rotor hub;
A clutch hub disposed radially inwardly corresponding to an inner diameter of one side of the rotor hub, and having a radially inner tip fixedly connected to the tip of the damper output shaft;
A plurality of clutch disks disposed between the clutch plates and spline-coupled to the outer diameter portion of the clutch hub;
A clutch connection member having an outer circumferential end spline-coupled to one side of the inner diameter portion of the rotor hub, and supporting the inner diameter portion of the inner circumferential end in an axial direction through a step surface formed at an outer tip portion of the input shaft to be spline-coupled; And
A clutch piston unit disposed between the clutch hub and the clutch connection member to form a hydraulic operating chamber between the clutch connection member to operate and control the clutch plate and the clutch disk;
Hybrid electric vehicle clutch device comprising a. 제1항에 있어서,
상기 클러치 피스톤 유닛은
상기 클러치 연결부재의 일측에 형성된 실링단과 내주단 사이에 각각 시일링을 통하여 밀폐된 상태로 유압 작동실을 형성하여 축방향으로 안내되며, 외단부가 상기 클러치 플레이트에 대응하여 작동하는 클러치 피스톤;
상기 클러치 연결부재의 내주단 일측에 반경방향 내측 선단이 지지된 상태로, 상기 클러치 피스톤의 일측에 형성된 연장단에 반경방향 외측 선단이 슬립 가능하게 설치되는 스프링 리테이너; 및
상기 클러치 피스톤과 스프링 리테이너 사이에 설치되어 상기 클러치 피스톤에 복원력을 제공하는 리턴 스프링;
을 포함하는 하이브리드 전기자동차용 클러치 장치.The method of claim 1,
The clutch piston unit
A clutch piston formed on one side of the clutch connection member and guided in the axial direction by forming a hydraulic operating chamber in a sealed state through a sealing ring, respectively, and an outer end operating in response to the clutch plate;
A spring retainer in which a radially inner tip is supported on one side of an inner circumferential end of the clutch connection member, and a radially outer tip is provided to be slipped on an extended end formed on one side of the clutch piston; And
A return spring installed between the clutch piston and the spring retainer to provide a restoring force to the clutch piston;
Hybrid electric vehicle clutch device comprising a. 제2항에 있어서,
상기 스프링 리테이너는
내측 선단이 상기 클러치 연결부재의 내주단 일측에 스냅링에 의해 축방향 외측으로 지지되도록 설치되는 하이브리드 전기자동차용 클러치 장치.The method of claim 2,
The spring retainer is
A clutch device for a hybrid electric vehicle, wherein an inner tip is installed to be supported axially outwardly by a snap ring on one side of the inner circumferential end of the clutch connection member. 제1항에 있어서,
상기 클러치 연결부재는
일측으로 연장 형성된 내주단의 일측에 단차면을 형성하고, 상기 단차면과 상기 댐퍼 출력축의 선단부 내측과의 사이에 베어링을 개재하여 회전 지지되는 하이브리드 전기자동차용 클러치 장치.The method of claim 1,
The clutch connection member
A clutch device for a hybrid electric vehicle that forms a stepped surface on one side of an inner circumferential end extending to one side, and is supported by rotation through a bearing between the stepped surface and an inner side of the tip end of the damper output shaft. 제1항에 있어서,
상기 클러치 연결부재는
상기 내주단의 내경부 일측에 상기 입력축의 엔진측 선단부에 형성되는 단차면에 지지되는 지지턱이 형성되는 하이브리드 전기자동차용 클러치 장치.The method of claim 1,
The clutch connection member
A clutch device for a hybrid electric vehicle in which a support jaw supported on a step surface formed at an engine-side front end of the input shaft is formed on one side of the inner diameter portion of the inner peripheral end. 제1항에 있어서,
상기 허브 연결부재는
일측면과 상기 댐퍼 출력축의 선단부 외측과의 사이에 베어링을 개재하여 회전 지지되는 하이브리드 전기자동차용 클러치 장치.The method of claim 1,
The hub connecting member
A clutch device for a hybrid electric vehicle that is rotated and supported through a bearing between one side and an outer side of the front end of the damper output shaft. 모터와 엔진으로부터 전달되는 회전동력을 변속기의 입력축에 선택적으로 연결하는 하이브리드 전기자동차용 클러치 장치에 있어서,
상기 모터의 로터 허브의 반경방향 내측 선단에 고정 연결된 상태로, 댐퍼 출력축 상에 회전 가능하게 설치되는 허브 연결부재;
상기 로터 허브의 일측 내경부에 스플라인 결합되는 복수의 클러치 플레이트;
상기 로터 허브의 일측 내경부에 대응하여 반경방향 내측에 배치되며, 반경방향 내측 선단이 상기 댐퍼 출력축의 선단에 고정 연결되는 클러치 허브;
상기 클러치 플레이트 사이사이에 배치되어 상기 클러치 허브의 외경부에 스플라인 결합되는 복수의 클러치 디스크;
상기 로터 허브의 내경부 내측에 외주단이 스플라인 결합되어 지지되고, 내주단의 내경부에 형성되는 지지턱을 통하여 상기 입력축의 외측 선단부에 형성되는 단차면에 축방향 내측으로 지지되어 스플라인 결합되는 클러치 연결부재;
상기 클러치 허브와 상기 클러치 연결부재 사이에 배치되어 상기 클러치 연결부재와의 사이에 유압 작동실을 형성하여 상기 클러치 플레이트와 클러치 디스크를 작동 제어하는 클러치 피스톤 유닛;
를 포함하는 하이브리드 전기자동차용 클러치 장치.In the clutch device for a hybrid electric vehicle selectively connecting rotational power transmitted from a motor and an engine to an input shaft of a transmission,
A hub connecting member fixedly connected to the radially inner tip of the rotor hub of the motor and rotatably installed on the damper output shaft;
A plurality of clutch plates spline-coupled to an inner diameter of one side of the rotor hub;
A clutch hub disposed radially inwardly corresponding to an inner diameter of one side of the rotor hub, and having a radially inner tip fixedly connected to the tip of the damper output shaft;
A plurality of clutch disks disposed between the clutch plates and spline-coupled to the outer diameter portion of the clutch hub;
A clutch in which an outer circumferential end is spline-coupled to the inner side of the rotor hub and is supported by a spline-coupled clutch that is supported in the axial direction to a stepped surface formed on the outer tip of the input shaft through a support jaw formed on the inner diameter part of the inner circumferential end. Connecting member;
A clutch piston unit disposed between the clutch hub and the clutch connection member to form a hydraulic operating chamber between the clutch connection member to operate and control the clutch plate and the clutch disk;
Hybrid electric vehicle clutch device comprising a. 제7항에 있어서,
상기 허브 연결부재는
내단부에 축방향 외측으로 돌출된 결합단의 내경부를 통해 상기 댐퍼 출력축 상에 회전 가능하게 설치되며, 상기 결합단의 외경부를 통해 프론트 케이스에 축방향 내측으로 형성된 지지단에 베어링을 통하여 회전 지지되는 하이브리드 전기자동차용 클러치 장치.The method of claim 7,
The hub connecting member
It is rotatably installed on the damper output shaft through the inner diameter of the coupling end protruding outward in the axial direction at the inner end, and rotation is supported through a bearing on the support end formed axially inward in the front case through the outer diameter of the coupling end. Hybrid electric vehicle clutch device. 제7항에 있어서,
상기 허브 연결부재는
일측면과 상기 댐퍼 출력축의 선단부 외측과의 사이에 베어링을 개재하여 회전 지지되는 하이브리드 전기자동차용 클러치 장치.The method of claim 7,
The hub connecting member
A clutch device for a hybrid electric vehicle that is rotated and supported through a bearing between one side and an outer side of the front end of the damper output shaft. 제7항에 있어서,
상기 클러치 피스톤 유닛은
상기 클러치 연결부재의 일측에 형성된 실링단과 내주단 사이에 각각 시일링을 통하여 밀폐된 상태로 유압 작동실을 형성하여 축방향으로 안내되며, 외단부가 상기 클러치 플레이트에 대응하여 작동하는 클러치 피스톤;
상기 클러치 연결부재의 내주단 일측에 반경방향 내측 선단이 지지된 상태로, 상기 클러치 피스톤의 일측에 형성된 연장단에 반경방향 외측 선단이 슬립 가능하게 설치되는 스프링 리테이너;
상기 클러치 피스톤과 스프링 리테이너 사이에 설치되어 상기 클러치 피스톤에 복원력을 제공하는 리턴 스프링;
을 포함하는 하이브리드 전기자동차용 클러치 장치.The method of claim 7,
The clutch piston unit
A clutch piston formed on one side of the clutch connection member and guided in the axial direction by forming a hydraulic operating chamber in a sealed state through a sealing ring, respectively, and an outer end operating in response to the clutch plate;
A spring retainer in which a radially inner tip is supported on one side of an inner circumferential end of the clutch connection member, and a radially outer tip is provided to be slipped on an extended end formed on one side of the clutch piston;
A return spring installed between the clutch piston and the spring retainer to provide a restoring force to the clutch piston;
Hybrid electric vehicle clutch device comprising a. 제10항에 있어서,
상기 스프링 리테이너는
내측 선단이 상기 클러치 연결부재의 내주단 일측에 스냅링에 의해 축방향 외측으로 지지되도록 설치되는 하이브리드 전기자동차용 클러치 장치.The method of claim 10,
The spring retainer is
A clutch device for a hybrid electric vehicle, wherein an inner tip is installed to be supported axially outwardly by a snap ring on one side of the inner circumferential end of the clutch connection member. 제7항에 있어서,
상기 클러치 연결부재는
일측으로 연장 형성된 내주단의 일측에 단차면을 형성하고, 상기 단차면과 상기 댐퍼 출력축의 선단부 내측과의 사이에 베어링을 개재하여 회전 지지되는 하이브리드 전기자동차용 클러치 장치.The method of claim 7,
The clutch connection member
A clutch device for a hybrid electric vehicle that forms a stepped surface on one side of an inner circumferential end extending to one side, and is supported by rotation through a bearing between the stepped surface and an inner side of the tip end of the damper output shaft.
KR1020190114874A 2019-09-18 2019-09-18 Clutch system for hybrid electric vehicles KR20210033306A (en)

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